#3537AB#3537AB
#3537AB is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.6% C 0.180 H 274.5°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).
Color values
| HEX | #3537AB |
|---|---|
| RGB | rgb(53, 55, 171) |
| HSL | hsl(239, 53%, 44%) |
| HSV | hsv(239, 69%, 67%) |
| CMYK | cmyk(69%, 67.8%, 0%, 32.9%) |
| CIE-LAB | lab(30.47, 37.17, -62.19) |
| CIE-LCH | lch(30.47, 72.45, 300.87°) |
| OKLab | oklab(41.6% 0.0142 -0.1796) |
| OKLCH | oklch(41.6% 0.18 274.5) |
| XYZ | xyz(10.1826, 6.4286, 39.2244) |
| Luminance | 0.0643 (WCAG relative) |
| Temperature | cool |
| Family | blue |
Closest named colors
Sapphire (survey)
#2138AB
ΔE00 2.17
Ocean Blue
#4F42B5
ΔE00 4.53
Blue Blue
#2242C7
ΔE00 5.01
Blueberry
#464196
ΔE00 5.02
Blue With A Hint Of Purple
#533CC6
ΔE00 5.72
Darkslateblue
#483D8B
ΔE00 6.39
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3537AB #ABA935
analogous
#3572AB #3537AB #6E35AB
triadic
#3537AB #AB3537 #37AB35
tetradic
#3537AB #AB3572 #ABA935 #35AB6E
square
#3537AB #AB3572 #ABA935 #35AB6E
split-complementary
#3537AB #AB6E35 #72AB35
monochromatic
#18194E #27287C #3537AB #5355CA #8284D8
Accessibility & contrast
On white
9.19
#3537AB on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.29
#3537AB on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #3537AB
9.19:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3537AB | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##3537AB | 1.00 | 9.19 | 2.29 | 9.19 |
| #FFFFFF | 9.19 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.29 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 9.19 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#004DAF
Deuteranopia (green-blind)
#0042A9
Tritanopia (blue-blind)
#00566C
Achromatopsia (no color)
#484848
Design tokens & code
CSS
--color: #3537ab; /* rgb */ color: rgb(53, 55, 171); /* oklch */ color: oklch(41.6% 0.180 274.5);
Tailwind
colors: {
custom: {
50: '#7c6ec5',
500: '#3537ab',
950: '#000000',
},
}SCSS
$custom: #3537ab; $custom-light: #7c6ec5; $custom-dark: #000000;
JSON
{
"hex": "#3537ab",
"rgb": {
"r": 53,
"g": 55,
"b": 171
},
"hsl": {
"h": 238.983,
"s": 52.679,
"l": 43.922
},
"oklch": {
"l": 0.41599,
"c": 0.18018,
"h": 274.5
},
"luminance": 0.0643
}Semantic roles & 50–950 ramp
primary
#3537AB
secondary
#C2C07A
accent
#DA4CDC
background
#F8F6FC
surface
#EFECF8
border
#CAC7D1
text
#0B0713
muted
#7C7A82